Progress bar graphical glitch
On startup i see the regular login screen. I enter my password and a login loading sequence starts. A progress bar appears below the profile picture, and just before it reaches halfway the screen goes black.
The whole screen is black except for the progress bar which is visible through small long rectangular opening through the black screen. A bit of the blurred background is also visible around the progress bar.
When the progress bar is finished the Computer will open up regularly as nothing is wrong.
This weird graphical error worries me, and i cannot find any other examples than my own.